ISL29501 Datasheet, PDF (20/23 Pages) Intersil Corporation – Auto gain control mechanism

Data Output Registers
ADDR
REGISTER NAME
0xD1 Distance Readout MSB
0xD2 Distance Readout LSB
0xD3 Precision MSB
0xD4 Precision LSB
0xD5 Magnitude Exponent
0xD6 Magnitude Significand MSB
0xD7 Magnitude Significand LSB
0xD8 Phase Readout MSB
0xD9 Phase Readout LSB
0xDA I Raw Exponent
0xDB I Raw MSB
0xDC I Raw LSB
0xDD Q Raw Exponent
0xDE Q Raw MSB
0xDF Q Raw LSB
0xE1 Emitter Voltage After
0xE2 Die Temperature
0xE3 Ambient Light
0xE4 VGA1
0xE5 VGA2
0xE6 Gain MSB
0xE7 Gain LSB
ACCESS
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
RL
TABLE 3. DATA OUTPUT REGISTERS AND BIT DEFINITIONS
BIT(s)
BIT NAME
FUNCTION
7:0 distance[15:8]
Distance output
7:0 distance[7:0]
Distance output
7:0 precision[15:8]
Measurement noise approximation
7:0 precision[7:0]
Measurement noise approximation
3:0 mag_exp[3:0]
Return signal magnitude
7:0 mag[15:8]
Return signal magnitude MSB
7:0 mag[7:0]
Return signal magnitude LSB
7:0 phase[15:8]
Phase output MSB
7:0 phase[7:0]
Phase output LSB
7:0 i_raw_exp[7:0]
In phase exponent
7:0 i_raw[15:8]
In phase MSB
7:0 i_raw[7:0]
In phase LSB
7:0 q_raw_exp[7:0]
Quadrature phase exponent
7:0 q_raw[15:8]
Quadrature phase MSB
7:0 q_raw[7:0]
Quadrature phase LSB
7:0 ev_after[7:0]
Emitter voltage
7:0 temperature[7:0]
Die temperature sensor measurement
7:0 ambient[7:0]
Ambient light measurement
7:0 vga1_setting[7:0]
VGA1 programmed setting
7:0 vga2_setting[7:0]
VGA2 programmed setting
7:0 gain_msb[15:8]
AGC gain MSB
7:0 gain_lsb[7:0]
AGC gain LSB
COMMENT
16-bit integer, LSB = 1mm
Unsigned 16-bit integer
Unsigned 4-bit exponent
Unsigned 16-bit integer, LSB = 10fA
Unsigned 16-bit integer, /2pi for radians
Unsigned 8-bit exponent
Unsigned 16-bit integer
Unsigned 8-bit exponent
Unsigned 16-bit integer
Unsigned 8-bit integer, LSB ~1.5mV
Unsigned 8-bit integer, LSB ~1.15°C
Unsigned 8-bit integer, LSB ~3.5µA
Unsigned 8-bit integer
Unsigned 8-bit integer
Unsigned 16-bit integer